Darkmoon Faire Nerfed? Whadda Deal?

Last night, I received a Skype:"Not sure about the turnins for the Greater Darkmoon Prize, but I turned in four of them, and I am just getting greens, nothing good, only a couple gold each. Should I keep going?" me: "Well, it's always a gamble, but you might want to turn the rest in, the numbers should go in your favor...or just sell off the Dense Grinding Stones in the AH, lemme check on it and